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Speedometer a 2004 silverado speedometer reads 100mph while actually at 50 mph

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  • nolane Oct 24, 2008

    I also have this problem with my 2004 Silverado speedometer. Seems there definitely needs to be a recall by GM on this !! It is all over the internet.

    Mine will occasionally start out at 50 MPH while I am just sitting still. Then when I turn off truck...and restart, it drops about 10 miles each time till it drops back to 0 MPH.

    Is the speedometer a cable or is it a vacuum type?

  • Anonymous Nov 21, 2008

    2003 silverado speedometer reads 100-120 when your going 50..... seems like a safty hazzard to me .

  • Anonymous Dec 12, 2008

    I have the same problem om my 2004 truck. The speedometer is part of the whole electronic cluster .Chevy wants a lot of $$$ for the cluster . Used 1's are high to.

  • Anonymous Dec 26, 2008

    my 2005 silverrado speedometer want work right it said 20 mph

    when you going 60 mph



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EASY to fix it yourself, or by anyone you know who is handy with tools for less than $40.

This is a known issue and a class action lawsuit for the GM SUV's is already under way, but not for passenger cars (yet). The dealers will commit criminal fraud by pretending to not know whats wrong and will charge you to replace everything else first. Then rather than replace the faulty components IN the gauge cluster they will replace the entire gauge cluster for hundreds, then charge for reprogramming the old odometer readings into the new cluster. All unnecessary. If they wont give you a firm price with a guarantee to fix the problem complete the first time, just walk away.

Go to ebay and search for user MANDIGITAL or search for "speedometer" "stepper".
You can get a set of 6 replacement stepper motors for about $40, enough to rebuild every gauge, or you can even buy just ONE for less money. This guy also has a service to replace the motors for you but you still have to take out the gauge cluster to ship it to him.

These little plastic motors (the size of a ritz cracker) simply position the gauge needles by computer command. A tiny bit of soldering is required to replace each one, and you just follow the included directions. I did mine in about an hour start to finish. Works perfectly now.

Heres a dashboard disassembly with pictures.

Here the process photographed from start to finish:

Finally, for those folks peeved about GM, I will say this in their defense. These components are not made by GM, and do not fail until after 4-5 years of use. GM could not predict this. They should however, start replacing these clusters as its a safety issue. Also, it is not GM that rips you off at the dealer, its the dealer. These are privately owned franchises.

NTSB will probably get the recall to happen, but it takes time. Keep logging complaints at NTSB :)


Posted on Jan 24, 2009


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